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Canon has been fully ahead with its RF lenses, with two of the new models being the RF 800mm f/11 IS STM and the RF 100-500mm f/4.5-7.1L IS USM: the company’s latest designs and features, but vary in their capabilities and prices.
At $2,699, the 100-500mm f/4.5-7.1L is definitely a professional lens, but it also offers impressive image quality and the kind of performance and focal length versatility that can tackle a wide variety of genres and scenarios with ease. On the other hand, for those who are just looking to get their feet with super-telephoto lenses or who simply want one for occasional use, the 800mm f/11 comes in at just a third the price of the zoom, albeit with the loss of focal length versatility and a much narrower maximum aperture. Both appear to be good performers relative to their prices and functions.
The video below from Photo Genius, extensively explains the breakdown of the Canon RF 800mm f/11 IS STM to the RF 100-500mm f/4.5-7.1L
